Turn your router's transmit power down to about half, and a crowded home Wi-Fi network gets steadier
The loudest radio in the house is not the one that gets heard.
MakeUseOf's Oliver Haslam, writing on September 7, makes the case that a router left at maximum transmit power causes the instability it is supposed to prevent. Phones and smart home gadgets carry small antennas and, as he puts it, "can't compete with the brute force of a router shouting over them", so their replies get lost even while the router's own signal arrives strong. He names three more costs of running flat out: high-power signals bounce off hard surfaces inside the house and come back as delayed echoes, neighboring routers are forced to compete and produce Co-Channel Interference that makes networks pause, and devices cling to the strongest signal instead of handing off to a nearer access point on a mesh. The fix is one setting: open the router's management page, usually at 192.168.0.1 or 10.0.0.1, find Advanced Wireless Settings or Transmit Power Control, choose Medium or roughly the 50% mark, then restart the router and give everything a little while to settle back down.
